Vibration damper of ocean engineering axial flow fan

Abstract

The utility model discloses a vibration damping device of an ocean engineering axial flow fan, which belongs to the technical field of axial flow fans, and is characterized in that a vibration damping adjusting piece comprises vibration damping connecting pieces, the vibration damping connecting pieces are fixedly mounted on two sides of an axial flow fan body, the vibration damping connecting pieces are connected with adjusting pieces in a limiting manner, and the adjusting pieces are connected with the vibration damping connecting pieces. The axial flow fan body is installed on the vibration reduction piece in a damping mode through cooperation of the vibration reduction connecting piece and the adjusting piece, the axial flow fan body is in limiting rotating connection with the adjusting piece and the vibration reduction piece through cooperation of the vibration reduction connecting piece and the vibration reduction piece, and the vibration reduction adjusting piece is used for improving the vibration reduction effect of the axial flow fan body and meanwhile facilitating adjustment of the angle of the axial flow fan body. The axial flow fan is used for adjusting the angle of the axial flow fan body under special conditions so as to change the blowing direction of the axial flow fan body, vibration generated by the axial flow fan body is reduced through multi-direction vibration reduction, meanwhile, the angle of the axial flow fan body is conveniently adjusted, and the air suction direction and the air suction direction of the axial flow fan body are changed.

Description

Technical Field

[0001] The utility model relates to the field of axial flow fans, in particular to a vibration reduction device for an axial flow fan of an ocean engineering project. Background Art

[0002] Axial flow fans are mainly used for ventilation of ship cabins. They can be used to supply air into the cabins as well as to extract air from the cabins. They are an indispensable equipment on ships.

[0003] At present, axial flow fans are generally installed through vibration-damping bases when in use to avoid excessive vibrations during operation. However, the existing vibration-damping structures for axial flow fans have poor vibration-damping effects, and the direction of vibration-damping is relatively single, which is not convenient for multi-directional vibration-damping, resulting in the axial flow fan vibrating violently. It is also not convenient to adjust the angle of the axial flow fan. When using axial flow fans, there are some special situations where the direction of blowing or sucking of the axial flow fan needs to be changed. The axial flow fan is used to supply air into the cabin and to extract air into the cabin. Adjusting the axial flow fan can increase or decrease the efficiency of ventilation. It is used according to the situation and is used in different seasons or different weather. How to invent a vibration-damping device for marine engineering axial flow fans to improve these problems has become an urgent problem to be solved by those skilled in the art. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a vibration reduction device for an axial flow fan in marine engineering, aiming to improve the problems that the existing structure for reducing vibration of the axial flow fan has poor vibration reduction effect, the direction of vibration reduction is relatively single, it is not convenient to carry out multi-directional vibration reduction and it is not convenient to adjust the angle of the axial flow fan.

[0005] The utility model is implemented as follows: a vibration reduction device for an axial flow fan in an offshore engineering project, comprising an axial flow fan body and a vibration reduction adjusting member, wherein the vibration reduction adjusting member comprises a vibration reduction connecting member, wherein the vibration reduction connecting member is fixedly mounted on both sides of the axial flow fan body, wherein the vibration reduction connecting member is limitedly connected with an adjusting member, wherein the axial flow fan body is damped and mounted on the vibration reduction member through the vibration reduction connecting member in cooperation with the adjusting member, wherein the axial flow fan body is limitedly rotatably connected with the adjusting member and the vibration reduction member in cooperation with the vibration reduction connecting member.

[0006] In a preferred technical solution of the present utility model, the vibration-damping connecting member includes a first connecting block and a second connecting block, the first connecting block and the second connecting block are fixedly installed on both sides of the axial flow fan body, the middle parts of the first connecting block and the second connecting block are respectively fixedly connected with a first damping spring and a second damping spring, one end of the first damping spring and the second damping spring is fixedly connected with a mounting screw, and one side of the second damping spring is fixedly connected with a limiting plate.

[0007] In a preferred technical solution of the present invention, the adjusting member includes a first mounting plate and a second mounting plate, the first mounting plate is mounted on one side of the first damping spring by means of a mounting screw and a nut for limited rotation, and the second mounting plate is mounted on one side of the limiting plate by means of a mounting screw and a nut for limited rotation.

[0008] In a preferred technical solution of the utility model, limiting sliders are fixedly installed on both sides of the first mounting plate and the second mounting plate respectively, and the two ends of the first mounting plate and the second mounting plate are respectively connected to the mounting shell in a limiting sliding manner through the limiting sliders, and a third damping spring is arranged between the mounting shell and the limiting slider.

[0009] In a preferred technical solution of the present utility model, T-shaped blocks are fixedly provided at both ends of the limit slider, and the limit slider is limited and slidable inside the installation shell by the T-shaped blocks.

[0010] In a preferred technical solution of the utility model, a connecting bolt is provided through the bottom of the second mounting plate, a limiting hole is provided at the bottom of the limiting plate, the tail of the connecting bolt slides with the limiting hole, and the limiting hole is located on one side of the second mounting plate and is threadedly sleeved with a limiting nut.

[0011] In a preferred technical solution of the utility model, the tail of the connecting bolt is clamped on one side of the limiting plate, and a limiting platform is provided in the middle of the connecting bolt, and the limiting platform limits the limiting plate in the limiting hole.

[0012] In a preferred technical solution of the present utility model, the vibration damping member includes an A-type rod, the two legs of the A-type rod are respectively fixedly connected to a mounting shell, the mounting shell is located in the middle of the A-type rod, the two legs of the two A-type rods are fixedly connected by a connecting rod, and the connecting rod is installed on a mounting plate.

[0013] In a preferred technical solution of the utility model, fixing bolts are threadedly penetrated at both ends of the two connecting rods, and the other ends of the fixing bolts are fixedly connected to a fourth damping spring.

[0014] In a preferred technical solution of the present utility model, the bottom of the fourth damping spring is fixedly mounted on the mounting plate, and the top of the fourth damping spring is fixedly connected to the fixing bolt via a gasket.

[0015] The beneficial effects of the utility model are as follows: the utility model obtains a vibration reduction device for an axial flow fan of an ocean engineering through the above-mentioned design. When in use, the first damping spring and the second damping spring on both sides of the axial flow fan body will perform lateral vibration reduction. When front-to-back vibration is generated, the axial flow fan body drives the first mounting plate and the second mounting plate to move forward and backward. The third damping springs on both sides of the first mounting plate and the second mounting plate will limit the first mounting plate and the second mounting plate to reduce the transmission of vibration and perform vibration reduction. When the axial flow fan body transmits up and down vibrations, the fourth damping spring at the bottom of the connecting rod will limit the vibration and reduce the vibration, thereby improving the stability of the axial flow fan body. At the same time, when it is necessary to adjust the angle of the axial flow fan body, the limit nut is screwed to make the axial flow fan body rotate around the mounting screw. After the angle adjustment is completed, the limit nut is screwed to cooperate with the connecting bolt to fix the limit plate and the second mounting plate tightly. Vibration reduction in multiple directions reduces the vibration generated by the axial flow fan body. At the same time, it is convenient to adjust the angle of the axial flow fan body and change the direction of suction and exhaust of the axial flow fan body to meet different needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of one side structure provided by an embodiment of the utility model;

[0018] Figure 2 A schematic diagram of the structure of another side provided for an embodiment of the utility model;

[0019] Figure 3 A schematic diagram of the structure of a vibration-damping connector provided in an embodiment of the utility model;

[0020] Figure 4 A schematic diagram of the enlarged structure of the vibration-damping member and part of the adjusting member provided in the embodiment of the utility model;

[0021] Figure 5 This is a schematic diagram of some adjusting parts and some enlarged structures provided in an embodiment of the utility model.

[0022] In the figure: 110-axial flow fan body; 200-vibration reduction adjusting member; 210-vibration reduction connecting member; 211-first connecting block; 212-first damping spring; 213-second connecting block; 214-limiting plate; 215-second damping spring; 216-mounting screw; 217-limiting hole; 220-adjusting member; 221-first mounting plate; 222-second mounting plate; 223-limiting slider; 224-mounting shell; 225-third damping spring; 226-T-block; 227-connecting bolt; 228-limiting nut; 229-limiting platform; 230-vibration reduction member; 231-A-type rod; 232-connecting rod; 233-mounting plate; 234-fixing bolt; 235 gasket; 236-fourth damping spring. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1 and Figure 2 The utility model provides a technical solution: a vibration reduction device for an axial flow fan of an offshore engineering, comprising an axial flow fan body 110, and also comprising

[0025] The vibration-damping adjusting member 200 includes a vibration-damping connecting member 210, which is fixedly mounted on both sides of the axial flow fan body 110. The vibration-damping connecting member 210 is limitedly connected with an adjusting member 220. The axial flow fan body 110 is damped and installed on the vibration-damping member 230 through the vibration-damping connecting member 210 and the adjusting member 220. The axial flow fan body 110 is rotationally connected with the adjusting member 220 and the vibration-damping member 230 in a limited position in cooperation with the vibration-damping connecting member 210. The vibration-damping adjusting member 200 is used to improve the vibration-damping effect of the axial flow fan body 110, and at the same time facilitates the adjustment of the angle of the axial flow fan body 110, and is used to adjust the angle of the axial flow fan body 110 in special circumstances to change the blowing direction of the axial flow fan body 110.

[0026] See also Figures 1 to 3The vibration-damping connecting member 210 includes a first connecting block 211 and a second connecting block 213, and the first connecting block 211 and the second connecting block 213 are fixedly installed on both sides of the axial flow fan body 110. The middle parts of the first connecting block 211 and the second connecting block 213 are respectively fixedly connected with a first damping spring 212 and a second damping spring 215, one end of the first damping spring 212 and the second damping spring 215 is fixedly connected with a mounting screw 216, and one side of the second damping spring 215 is fixedly connected with a limiting plate 214. The first damping spring 212 and the second damping spring 215 are used to reduce the vibration generated by the axial flow fan body 110 on the left and right.

[0027] See also Figures 1 to 5 The adjusting member 220 includes a first mounting plate 221 and a second mounting plate 222. The first mounting plate 221 is mounted on one side of the first damping spring 212 by means of a mounting screw 216 and a nut for limiting rotation. The second mounting plate 222 is mounted on one side of the limiting plate 214 by means of a mounting screw 216 and a nut for limiting rotation. The left and right vibrations of the axial flow fan body 110 will drive the first damping spring 212 and the second damping spring 215 to squeeze the first mounting plate 221 and the second mounting plate 222. At this time, the first damping spring 212 and the second damping spring 215 will reduce the left and right vibrations of the axial flow fan body 110.

[0028] The first mounting plate 221 and the second mounting plate 222 are respectively fixedly mounted with limit sliders 223 on both sides, and the first mounting plate 221 and the second mounting plate 222 are respectively connected to the mounting shell 224 by limit sliders 223 at both ends, and a third damping spring 225 is arranged between the mounting shell 224 and the limit slider 223. T-shaped blocks 226 are fixedly arranged at both ends of the limit slider 223, and the limit slider 223 is limited and slidable inside the mounting shell 224 by the T-shaped blocks 226. During the operation of the axial flow fan body 110, front and rear vibrations are generated, causing the axial flow fan body 110 to move forward and backward. When the axial flow fan body 110 moves forward and backward, the first mounting plate 221 and the second mounting plate 222 are driven to move forward and backward through the mounting screw 216, and the front and rear displacements of the first mounting plate 221 and the second mounting plate 222 are damped by the third damping spring 225.

[0029] A connecting bolt 227 is provided through the bottom of the second mounting plate 222, and a limiting hole 217 is provided at the bottom of the limiting plate 214. The tail of the connecting bolt 227 slides with the limiting hole 217. The limiting hole 217 is located on one side of the second mounting plate 222 and is threadedly sleeved with a limiting nut 228. The tail of the connecting bolt 227 is stuck in one side of the limit plate 214, and a limit platform 229 is set in the middle of the connecting bolt 227. The limit platform 229 limits the limit plate 214 in the limit hole 217. When the angle of the axial flow fan body 110 needs to be adjusted, the connecting bolt 227 and the limit nut 228 are adjusted to make the limit platform 229 disengage from the limit hole 217 and release the restriction on the limit plate 214. At this time, the angle of the axial flow fan body 110 is adjusted. After the adjustment is completed, the connecting bolt 227 and the limit nut 228 are locked and connected to cooperate with the limit platform 229 to limit the limit plate 214 to fix the angle of the axial flow fan body 110.

[0030] See also Figure 2 and Figure 4 The vibration damping member 230 includes an A-shaped rod 231, the two legs of the A-shaped rod 231 are respectively fixedly connected to the mounting shell 224, the mounting shell 224 is located in the middle of the A-shaped rod 231, and the two legs of the two A-shaped rods 231 are fixedly connected by a connecting rod 232, and the connecting rod 232 is installed on the mounting plate 233. The two ends of the two connecting rods 232 are respectively threaded with fixing bolts 234, and the other end of the fixing bolt 234 is fixedly connected to the fourth damping spring 236, and the fourth damping spring 236 is used to reduce the vibration generated up and down. The bottom of the fourth damping spring 236 is fixedly installed on the mounting plate 233, and the top of the fourth damping spring 236 is fixedly connected to the fixing bolt 234 through a gasket 235.

[0031] Working principle: When the axial flow fan body 110 encounters lateral vibration during operation, the first damping spring 212 and the second damping spring 215 on both sides of the axial flow fan body 110 will reduce vibration and reduce the vibration transmitted to both sides by the axial flow fan body 110. At the same time, if the front-to-back vibration occurs, the axial flow fan body 110 drives the first mounting plate 221 and the second mounting plate 222 to move forward and backward. The third damping spring 225 on both sides of the first mounting plate 221 and the second mounting plate 222 will limit the first mounting plate 221 and the second mounting plate 222 to reduce the transmission of vibration and reduce vibration. When the axial flow fan body 110 transmits the up and down vibration, the bottom of the connecting rod 232 The fourth damping spring 236 will limit the vibration and improve the stability of the axial flow fan body 110. At the same time, when it is necessary to adjust the angle of the axial flow fan body 110, the limit nut 228 is screwed, and the connecting bolt 227 is pulled out backward to make the limit platform 229 disengage from the limit hole 217, and the angle of the axial flow fan body 110 is adjusted to make the axial flow fan body 110 rotate around the mounting screw 216. After the angle adjustment is completed, the connecting bolt 227 is inserted to make the limit platform 229 sink into the limit hole 217 to limit the angle of the limit plate 214. At the same time, the limit nut 228 is screwed to cooperate with the connecting bolt 227 to make the limit plate 214 and the second mounting plate 222 tightly fixed.

[0032] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A vibration reduction device for an axial flow fan in an offshore engineering, comprising an axial flow fan body, characterized in that: Also includes A vibration-damping adjusting member, wherein the vibration-damping adjusting member comprises a vibration-damping connecting member, wherein the vibration-damping connecting member is fixedly mounted on both sides of the axial flow fan body, wherein the vibration-damping connecting member is limitedly connected with an adjusting member, wherein the axial flow fan body is damped and mounted on the vibration-damping member through the vibration-damping connecting member in cooperation with the adjusting member, and wherein the axial flow fan body is limitedly rotatably connected with the adjusting member and the vibration-damping member in cooperation with the vibration-damping connecting member.

2. The vibration reduction device for an axial flow fan for marine engineering according to claim 1 is characterized in that: The vibration-damping connecting member includes a first connecting block and a second connecting block, the first connecting block and the second connecting block are fixedly installed on both sides of the axial flow fan body, the middle parts of the first connecting block and the second connecting block are respectively fixedly connected with a first damping spring and a second damping spring, one end of the first damping spring and the second damping spring is fixedly connected with a mounting screw, and one side of the second damping spring is fixedly connected to a limiting plate.

3. The vibration reduction device for an axial flow fan for marine engineering according to claim 2 is characterized in that: The adjusting member includes a first mounting plate and a second mounting plate. The first mounting plate is mounted on one side of the first damping spring through a mounting screw and a nut for limited rotation. The second mounting plate is mounted on one side of the limiting plate through a mounting screw and a nut for limited rotation.

4. The vibration reduction device for an axial flow fan for marine engineering according to claim 3 is characterized in that: Limiting sliders are fixedly installed on both sides of the first mounting plate and the second mounting plate respectively, and both ends of the first mounting plate and the second mounting plate are respectively connected to the mounting shell in a limiting sliding manner through the limiting sliders, and a third damping spring is arranged between the mounting shell and the limiting slider.

5. The vibration reduction device for an axial flow fan for marine engineering according to claim 4 is characterized in that: Both ends of the limit slider are fixedly provided with T-shaped blocks, and the limit slider is limited and slidable inside the installation shell through the T-shaped blocks.

6. The vibration reduction device for an axial flow fan for marine engineering according to claim 4 is characterized in that: A connecting bolt is provided through the bottom of the second mounting plate, a limiting hole is provided at the bottom of the limiting plate, the tail of the connecting bolt slides with the limiting hole, and the limiting hole is located on one side of the second mounting plate and is threadedly sleeved with a limiting nut.

7. The vibration reduction device for an axial flow fan for marine engineering according to claim 6 is characterized in that: The tail of the connecting bolt is clamped on one side of the limiting plate, and a limiting platform is arranged in the middle of the connecting bolt, and the limiting platform limits the limiting plate in the limiting hole.

8. The vibration reduction device for an axial flow fan for marine engineering according to claim 3 is characterized in that: The vibration damper comprises an A-shaped rod, two legs of the A-shaped rod are respectively fixedly connected to a mounting shell, the mounting shell is located in the middle of the A-shaped rod, two legs of the two A-shaped rods are fixedly connected by a connecting rod, and the connecting rod is mounted on a mounting plate.

9. The vibration reduction device for an axial flow fan for marine engineering according to claim 8, characterized in that: Both ends of the two connecting rods are respectively threadedly provided with fixing bolts, and the other ends of the fixing bolts are fixedly connected with a fourth damping spring.

10. The vibration reduction device for an axial flow fan for marine engineering according to claim 9, characterized in that: The bottom of the fourth damping spring is fixedly mounted on the mounting plate, and the top of the fourth damping spring is fixedly connected to the fixing bolt via a gasket.

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